added list and remove tap devices functionality
added list and remove tap devices functionality

subutai-io/Subutai,subutai-io/Subutai,subutai-io/base,subutai-io/base,subutai-io/base,subutai-io/Subutai,subutai-io/base,subutai-io/Subutai,subutai-io/Subutai,subutai-io/Subutai